212120001112 has 64 divisors (see below), whose sum is σ = 423087598080. Its totient is φ = 99493861632.

The previous prime is 212120001101. The next prime is 212120001133. The reversal of 212120001112 is 211100021212.

It is a junction number, because it is equal to n+sod(n) for n = 212120001092 and 212120001101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2041573 + ... + 2142955.

It is an arithmetic number, because the mean of its divisors is an integer number (6610743720).

Almost surely, 2^212120001112 is an apocalyptic number.

It is an amenable number.

212120001112 is a deficient number, since it is larger than the sum of its proper divisors (210967596968).

212120001112 is a wasteful number, since it uses less digits than its factorization.

212120001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101632 (or 101628 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212120001112 its reverse (211100021212), we get a palindrome (423220022324).

The spelling of 212120001112 in words is "two hundred twelve billion, one hundred twenty million, one thousand, one hundred twelve".